Brivaracetam Impurity 4 CAS 357337-00-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 357337-00-9 |
| Molecular Formula | C11H20N2O2 |
| Molecular Weight | 212.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Brivaracetam Impurity 4 (CAS 357337-00-9) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C11H20N2O2. Molecular weight: 212.29 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C11H20N2O2 |
| Molecular Weight | 212.29 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Brivaracetam Standards
- Brivaracetam (CAS 357336-20-0)
- Brivaracetam impurity 104 (CAS 357334-83-9)
- Brivaracetam Impurity 131 (CAS CATO-C4X-2007131)
- Brivaracetam Impurity 144 (CAS CATO-C4X-2007144)
- Brivaracetam Impurity 182 (CAS CATO-C4X-2007182)
- Brivaracetam Impurity 2 (CAS 357336-19-7)
- Brivaracetam Impurity 3 (CAS 357336-99-3)
- Brivaracetam Impurity 74 (CAS CATO-C4X-200774)
Recommended Standards
- Difenidol Impurity 10 (CAS 5180-33-6)
- Guaiazulene impurity 11 (CAS 24687-70-5)
- Guaiazulene Impurity 5 (CAS CATO-C4X-22375)
- Tranexamic Acid Impurity 20 (CAS 2682114-50-5)
- Ketoconazole EP Impurity A (and enantiomer) (CAS 254912-63-5)
- 2-Chloro-3-(4-chloro-2-methylbenzenesulfonyl)-4,6-dimethylpyridine (CAS 338774-15-5)
- 3-Fluorocyclobutane-1-carbonitrile (CAS 1552638-51-3)
- Econazole impurity 16 (CAS 24155-47-3)
- N-(4-fluorophenyl)-3-((4-nitrobenzyl)thio)thiophene-2-carboxamide (CAS 251097-02-6)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com